The Mandans, through intervention, made peace with the Rickarees, and restored traps and furs which they had taken from French hunters. During the entire winter these Indian tribes were most friendly, and their stores of corn, obtained by the expeditionary force by trade or purchase, were of material benefit to the party. The negro was a constant source of wonder to the crowds of Indians who visited them. The one-eyed great chief of the Minnetarees said that some foolish young men had told him there was a person quite black. When York, the negro, appeared, the one-eyed savage, much surprised, examined the negro closely, and spitting on a finger rubbed the skin in order to wash off the paint, and it was not until the negro showed his curly hair that the Indian could be persuaded he was not a painted white man. Game, though at some distance, was abundant, and seventy head of large animals were obtained in a hunt of ten days. With regard to the Indians Lewis says: "A camp of Mandans caught within two days one hundred goats a short distance below us. Their mode of hunting them is to form a large strong pen or fold, from which a fence is made of bushes gradually widening on each side; the animals are surrounded by the hunters and gently driven toward this pen, in which they imperceptibly find themselves enclosed, and are then at the mercy of the hunters. "When the Indians engage in killing buffalo, the hunters mount on horseback and, armed with bows and arrows, encircle the herd and gradually drive it into a plain or open place fit for the movement of horse; they then ride in among them, and singling out a buffalo, a female being preferred, go as close as possible and wound her with arrows till they think they have given the mortal stroke; when they pursue another till the quiver is exhausted. If, which rarely happens, the wounded buffalo attacks the hunter, he evades the blow by the agility of his horse, which is trained for the combat with great dexterity." The winter proved to be of unusual severity, and several times the temperature fell to forty degrees below zero, and proof spirits froze into hard ice. The fortitude with which the hardy savages withstood such extreme cold, half naked as they often were, impressed our explorers.